Hi, I'm wiring my FC (omnibus flip32 f4 v2), but I'm waiting on my new radio and receiver (taranis qx7 & x4r-sb). Question is how do I wire it up correctly. I have an idea, but want to make sure. This is my first build and nothing came with any instructions or pinout. So I want to make sure I'm doing it right. Thanks in advance.

You are going to want to use SBUS with that receiver. If you look at the top right corner of the board (in your first picture), it says "SBUS". It will be these three pins that you will connect to your receiver.

Coming from the receiver, there will be 3 wires (typically white/yellow, red and black). The white/yellow line is signal, and that will connect to the SBUS pin. The red is 5v, and the black is ground.

On the X4R, there is a set of 3 pins that are labelled similarly. Those are where you will put the connection to the receiver.

I am not totally familiar with the omnibus (my first one is on its way) but I think the dedicated SBUS pin is UART2 UART1. So, when you get to Betaflight, you will go to the "Ports" tab and for UART2 UART1. you will select "SerialRX". After that, go to the "Configure" tab and look for the box that says "Receiver" and in that, choose Serial for Receiver Mode, and just below that, select "SBUS" for the protocol.

For some pictures of this, refer to this page - https://oscarliang.com/sbus-smartport-telemetry-naze32/

The first two picture of the configurator show what I just explained.

Let us know if you need any more clarification.

For the Omnibus F4 Pro (which is the one with the current sensor) V2 (which is the one that has a switching regulator), then if you connect s.bus, +ve and -ve to the pins at J7 then you will be able to configure your receiver as SerialRX on UART1. Don't forget to turn off MSP if it is enabled on UART1, it only needs to be enabled for the VCP interface.

Connecting s.port telemetry is a little bit more tricky as the F4 boards have to use an external inverter and there's only one provided for the s.bus input on J7 with the Omnibus.

So, either you need to invert the s.port signal with an external, bidirectional inverter or solder a wire to the receiver to access the uninverted signal, or you can hook into the spare GPIO channel that's exposed on the flight controller at a pad near the MCU and assign that pad as a soft serial port and use that for telemetry. There's a very helpful post by teralift on RCGroups that shows how you can use the third option: https://www.rcgroups.com/forums/showpost...count=1750

(17-May-2017, 01:14 PM)unseen Wrote: For the Omnibus F4 Pro (which is the one with the current sensor) V2 (which is the one that has a switching regulator), then if you connect s.bus, +ve and -ve to the pins at J7 then you will be able to configure your receiver as SerialRX on UART1. Don't forget to turn off MSP if it is enabled on UART1, it only needs to be enabled for the VCP interface.

Connecting s.port telemetry is a little bit more tricky as the F4 boards have to use an external inverter and there's only one provided for the s.bus input on J7 with the Omnibus.

So, either you need to invert the s.port signal with an external, bidirectional inverter or solder a wire to the receiver to access the uninverted signal, or you can hook into the spare GPIO channel that's exposed on the flight controller at a pad near the MCU and assign that pad as a soft serial port and use that for telemetry. There's a very helpful post by teralift on RCGroups that shows how you can use the third option: https://www.rcgroups.com/forums/showpost...count=1750

Thanks for correcting my mistakes. I forgot that the Omnibus use virtual com ports. I'll edit my first post so no one is misled.

Thanks for info guy's telemetry sounds a bit complicated to get to work. If I can't figure it out receiver will still work correctly right?

(17-May-2017, 05:13 PM)Jacob Vantlin Wrote: Thanks for info guy's telemetry sounds a bit complicated to get to work. If I can't figure it out receiver will still work correctly right?

It will still work fine if you don't connect the s.port wire and you will still receive RSSI info on your radio. If you do connect it, the flight controller can pass other information like your flight battery voltage back to the radio as well.

(17-May-2017, 05:13 PM)Jacob Vantlin Wrote: Thanks for info guy's telemetry sounds a bit complicated to get to work. If I can't figure it out receiver will still work correctly right?

Everything in this hobby seems complicated at first, then it begins to make sense, then it becomes second nature

Since you're using the Omnibus, you can also set up the OSD to display most of the same information that you'd get with telemetry. In Betaflight, there is an OSD tab, and that is where you'll be able to set up the information that you want displayed on your screen.

Update I got receiver hooked up and working. Not sure if telemetry is hooked up correctly, but I'm outta time tonight to mess with it. Thanks for help guys